Frame for wood-planing machines.



E. HARROLD.

FRAME FOR WOOD PLANING MACHINES.

APPLICATION FILED AUGA, 1910.

Patented Aug. 13, 1912.

2 SHEETS-SHEET 1.

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WITNESSES \ULUMBIA PLANMRAPN CO4. WASHINGTON. D. C-

' B. HARROLD.

FRAME FOR WOOD PLANING MACHINES.

APPLICATION FILED AUG. 4, 1010.

Patented Aug. 13, 1912.

2 SHEETS-SHEET 2.

@JZISZLZM. $611M. (1 W Q1111 WITNESES W /6, JQM/ COLUMBIA PLANOGRAFM co., WASHINGTON. D. C.

UNITED STATES PATENT OFFICE.

ELMER HARROLD, 0F LEETONIA, OHIO, ASSIGNOR TO THE CRESCENT MACHINE COMPANY, OF LEETONIA,

OHIO, A CORPORATION OF OHIO.

FRAME FOR WOOD-PLANING MACHINES.

Specification of Letters Iatent.

Patented Aug. 13, 1912.

To all whom it may concern:

Be it known that I, ELMER HARRoLD, of Leetonia, Columbiana county, Ohio, have invented a new and useful Improvement in Frames for Wood-Planing Machines, of which the followin is a full, clear, and eX- act description, reference beinghad to the accompanying drawings, forming part of this specification, in which-- Figure 1 is a plan View of a wood planer frame constructed in accordance with my invention; Fig. 2 is a side view of the same; Fig. 3 is an end View; and Fig. 4 is a section on the line IV-IV of Fig. 2.

My invention has relation to wood-planing machines, and more particularly to the construction of the supporting frame thereof. I-Ieretofore it has been the practice in the construction of these machines to form the end plates or housings of the frame to extend to the floor, the two plates or housings connected by girder members bolted into place; or sometimes in the smaller types of machines the two housings with the girder members all cast in one piece. These forms of construction have been the source of considerable trouble in the manufacture and operation of wood-planers. In the case of bolted frames it is common for the frames to be thrown out of true by shocks the machine receives in handling and shipping, bringing the shaft bearings out of alinement, causing them to bind in their bearings and causing serious difficulty of operation. Frames with housings and girder members cast in one piece can not be designed to give proper rigidity without causing serious diflicultles in manufacturing. The various processes of molding, machining and fitting the parts, can not readily be accomplished; and in the case of accidental breakage, the cost of repairs is excessive.

In accordance with my invention, I provide a frame having a solid integral base provided with seats, to which separately formed end plates or housings are rigidly bolted. This construction obviates the diiiiculties above referred to, and provides a strong and rigid frame, which can readily be constructed and assembled.

My form of construction is readily cleaned up, free from chips and shavings, an advantage not possessed by other forms of construction.

In the accompanying drawings, the numeral 2 designates the base of the frame, which is cast as one solid piece, and is preferably provided with the diagonal bottom reinforcing ribs 3. At opposite ends the base is provided with the slightly raised portions 4, which are accurately machined or surfaced to provide true seating surfaces for the separately formed end frames or housings 5. These end frames or housings are formed with inwardly extending flanges or feet 6 at their lower ends, which are also machined and surfaced to fit the seats 4, and which are provided with holes to receive a series of securing bolts 7.

The exact construction of the plates will depend somewhat upon the particular character of the working parts which they support. In all cases, however, each end plate is preferably formed in one solid piece with a broad seating and bolting flange or foot at its lower end. Each plate is also provided at its upper portion with a seat 8 for the cutter shaft bearings, and with seats 9 for the bearings of the feed-rolls.

10 designate inward projections for the threaded shafts, which actuate the adjustable table.

The advantages of my invention will be appreciated by those familiar with machinery of this kind, and who have experienced the many diiiiculties which have been encountered with the old construction in which the end plates or housings extend to the floor, and connected by girder members instead of having the base member underneath, to support housings.

What I claim is A frame for planing machines, comprising an integral base having raised seating surfaces at opposite end portions, separate end plates or housings having broad seating flanges or feet at their lower ends fitting and rigidly secured to the seating portions of the base, an integral flange extending downwardly from each edgeof the base, integral reinforcing ribs extending diagonally from In testimony whereof, I have hereunto set the cenlter of the base to each junction bemy hand.

tween 1; e first mentioned flanges, each of the diagonal :ribs merging into adjacent diag0- ELMER R nal ribs at the center, and into adjacent, Witnesses:

flangesalong the edge ofthe base;.substan- J OHN B. MORGAN,

tia'lly as described. 2 JESSIE J. GALLAGHER. .iffj

Copies of this patent may betobta'ined for five 20611155 each, by addressing fthe Commissioner of Patents. Washington, D. C. 

